Summary
Wellesley Senior High serves 1,262 students in grades 9–12 in Wellesley, Massachusetts, a suburban town west of Boston, and ranks 17th out of 353 Massachusetts high schools in 2025–2026 within a Wellesley district ranked 5th of 351. The school has been a near-constant top-20 performer for a decade, climbing from 57th in 2015–2016 to 3rd in 2020–2021, with 19th, 16th, and 13th place finishes in other recent years. Its 2024–2025 graduation rate was 96.7%, its dropout rate 0.6%, its student–teacher ratio 10.7, and per-pupil spending $21,475 in 2020–2021.
Test scores are roughly double state averages, but nearby towns are unusually strong competition. In 2025–2026 10th-grade MCAS, Wellesley scored 77.54% in ELA against a state average of 45.48%, yet trailed Needham High, Dover-Sherborn Regional High, Westwood High, and Newton North High. Math was 84.29% (state 43.73%), fourth among nearby schools. Science is a clear strength at 81.41% versus a 40.50% state average, behind only Dover-Sherborn and Wayland High School. Physics stands out too: 81.95% in 2024–2025, the highest among nearby reporting schools.
Resources are used efficiently: Wellesley spends less per student than Weston High, Watertown High, Newton North High, Newton South High, and Dover-Sherborn, yet has one of the lowest student–teacher ratios nearby. Graduation is strong but not the very best among elite peers — Dover-Sherborn (99.4%), Needham (99.0%), Newton South (98.7%), Westwood (98.6%), Weston (98.2%), and Wayland (97.7%) all edge ahead. Statewide, the school ranks in the 93rd–96th percentile for female, male, Hispanic, Special Education, low-income, and White student groups, while Asian and multiracial student rankings slipped in the latest year. Free/reduced-lunch data was not available, so socioeconomic composition cannot be quantified from it.
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